I just saw this question recently, and I believe the answer was "no nothing exists yet for MVM and metasploit".
I hope that helps!
Have you had any success leveraging MVM data into Metasploit? If so would you be willing to share?
Download the community edition of Metasploit (or one of the other GUI versions) and it'll allow you to import the host_data.xml file. For whatever reason I wasn't able to import it using the console version.